The Missa Osculetur me is for double choir, and one of Lassus'
three late masses in this style. It shows some forward-thinking
applications of what are apparently Italian ideas on double choir
writing. The motets Osculetur me & Salve regina use a similar
arrangement, while Alma redemptoris Mater is midway between double
choir writing and more traditional Franco-Flemish through-composed
polyphony. While the other motets are in more traditional idioms,
Timor et tremor shows extreme chromatic traits heralding
Gesualdo.